Staff.alignAboveContext and volta brackets

[Nicolas Sceaux]

Hi

I'm having some troubles with the \set Staff.alignAboveContext feature
with conjonction with \set Score . repeatCommands.

In the first example, the "2." volta is attached to what has become the
second staff, rather than the newly created one:

volta.ly
Description: Text document

In this second example, I'm trying to move the engraver responsible of
displaying the volta brackets from Score to Staff, but the "2." volta is
not displayed in the new staff.

volta2.ly
Description: Text document

What am I doing wrong?

nicolas